Long-stroke pumping outfit



Nov. 11, 1930. E. D. SMITH T AL 1,781,347

LONG STROKE PUMPING OUTFIT Filed Jan. 15, 1930 Patented Nov, 11, 193G ELI'JAH DESMITH AND CHARLES s. MCINTYREQOF DRUMRIGHT, OKLAHOMA LONG-STROKE stream OYUTIJIT A lication filed January 16, 1930. Serial No. 421,212.

The present invention-relates to improveelene in pumping apparatus.

'Anobject of this invention is to provide "means f wlhereby' the normal stroke of the 5 pumping apparatus may be substantially increasedtvithout in any Waychanging the structiire of the pumping apparatus.

Another object of this invention is to provi de an attachment Whichmay be added toan oscillating pnmp apparatus by means of Which the pumping stroke will be mate- *rially' increased.

' A further "object of this invention is to provide a device ofthis character Which is l 'readilyandcheaply manufactured and which yvil ljnotmaterially increase the cost of the *piiiiipingapparatus;

Theabove and'varions other objects and advantages ofthis invention'will in'part be m' described in and" in part beunderstood from the" follovving detailed description of the "present preferred embodiment, the same being illnstrated in the accompanying draw- 'ing' wherein: Figure 1 is a fragmentary detailed side "elevation" of a device constructed according to the preferred embodiment of this inven *thedevice, and V e y I y Fgnre 3 is a fragmentarytop plan view or the adjustable connecting bars. i

' Referringto the drawing wherein like numerals of reference designate correspondl 51' ing parts throiighont the sev ral views, the

' numeral 10 designates a supporting post or oscillating beam inember 11 is mo'unted. A

power vvheel *12 which is operated from a snitable source of power supply is rotatably carriedby a supporting ember 13 which is positioned in "spaced relation to the supmember f 14 is carried the shaft 15 which pitman or connecting-tar 16 'is loosely i -b l a'nd atthe otherornpper end is pivot- -ally secnredto-the inneflendportion ofthe Figure 91s a detailedfront elevatiodof Q nieniberliponi-the iipper end ofivhich an beam member 11 as at17. In the device at presentinnse, theoscillating movement of the beam member 11 is dependent upon the stroke of the offset crank member 14; and in order to increase the oscillating movement of thebeamitis either necessary tdincrease the stroke or-to change the position of the pivotal support or fulcrum 18 of thebeam. In most cases it is not advisable to change the position of the fulcrnni'lS, and it is exceedingly diflicult toeha'nge or lengthen the stroke produced by the crank 14, However, an increased pumping stroke isaccomplished by means ofa long stroke attachment vvhich issecured at one end to the crank member 14 or to the lowerend portion of the 'pitman 16. The long stroke attachment comprises a platebolt 19 which may b'efseciiredto the pitman 16' at any desired point along the pitman butbpreferably is adapted tofhave the offset crank member 14 extendtherethrough so that the full stroke of the crank membertvill be utilized. I W

' U-sha'ped plate20 orthe like is moi nted on theouter end portion of theioscill ating beam 11 and is mounted in. inv {ted;p0sition being provided Withj'gn' dgeons' 'orshafts 21 orffthe like outstanding from thelower endsthereof. p V H H A fpairfof ffsprocket Wheels Q22 are secured to the enter endporti'ons of theifshafts 21 and arepositioned in spaced relationto the opposite face portions of the beam member 11. Alpair of ehainstrands Q Sjare adapted ifto ride" over'the'sp'rockets 22 and are secured rtme afre a trans'versefbar 24'and atthe oppositeiend to a p'air of tiirnbiiekles or conneeting members 25. The connecting mem- "bers 25 are adapted to ekte 'idlabout the op "posite side portions offth isnpp'orting post 10Y'and2ire s'ecliired at the e posiygenasre a second transversebar 26 xvhi ch is swiveled or rfotatablyiiionii'ted therein. y y "A.'clevisor foi ked' bar niemberg'l" is secured at one end to the *transvers swiveled member- 26 and at the oppiisiteehd 'is moiinted in tlie plate member 19. If desired, the'fplate member 19 may 'be'providedwith a plurality 'of openings 29sothat' any desired stroke may be obtained.

' preferred embodiment of this invention,

due to'f thef amount j'of pull exerted by the pumping apparatus, the sprocket members 22 and the chain strands 23 have been found to accomplish the desired result and towithstand the strain under which these members are constantly placed.

" pumping apparatus is adapted to be oper-V In the use of this dev1ce,the oscillating ated in the conventionalmanner. When the r :aower wheel'12vis rotated thereby rotating the crank 14, the eye bolt 19 is operatively swung with thelm ovement-of the pit1nan- 16. The swinging. movement of theeye bolt 19 will coactively oscillate the connecting bar '27 and coactively operate the chain strands 23 I so that on the downward stroke of the beam member 11, the cable or pump rod 28 will be permitted to move downwardly substantially an additional distance equal to the distance member 15.

" same distance.

between the eye bolt 19 and the axial shaft;

In like manner, the upward stroke of the pump 28'will be increased the It will, ofcourse, be understood that varlous changes and modifications may be made 1n the deta1ls of construction and design of the above specifically described embodiment of the invention without departing from the spirit thereof, such changes and modifications being restricted only by the scope ofthe fol;

lowing claims. a

. What .is claimed is I I LIn combination with an oscillating beam having power means, flexible means secured at one end to said power'means and at the'oppo'site end to a pump rod, said flexi-i .b'lemeans being adapted to reciprocallyengage said oscillating beam whereby to in? crease the stroke thereof imparted to said and engaging said flexible means-whereby to 7 permit reciprocationlof said flexiblemeans 'coactively with the oscillation of thebeam.

2. In pumping apparatus, a power wheel,

- an uprlght supporting v member spacedly' mounted with respect to said power wheel, "an oscillating beam fulcrumed'on said support, connecting means forconnecting said beam and said power wheel,'fle xible means secured to' said connecting means and reciparocally engaging said oscillating beam, and means carried by sald beam and engaging said flexible means whereby to permit reciprocation of said flexible means coactively with"the oscillation of the beam. I

3. In pumping apparatus, a supporting r the outer end portion thereof,,flexible means engaging about said wheel and adapted to be secured at oneend to ariecip'rocati ng element and connecting means secured at one end to the other endsaid flexible means and at the opposite end to said pitman.

4. A device'of th'e'charact-er described comprising a supporting member, an oscillating member fulcrumed on said supporting member, power means for said oscillating member, a pitman secured at oneend to said oscillating beam andat the opposite end to said power means, a shaft rotatably mounted on" said oscillating beam adjacent. the outer end portion thereof, sprocket means carried by said shaft, chain means'engaging about said sprocket means and secured at one end to a pumping rod, and connecting means se: cured to the other end of said chain means, said connecting means .beingsecuredf at one cndto said chain meansand at theopposite end to a reciprocating element, saidv'connectingmeans and saidchain means being adapted to reciprocate on" said beam cooperatively with the oscillation of saidbe amug'.

'5'.. A deviceof the character desc prising anupright'supporting member, an oscillating beamfulcrumed on said supporting member, power means, a pitman secured means, a shaft transversely mounted on said oscillating beam adjacent the outerend porto the, otherend of said chain strandsand "spacedly engaging about the opposite}, side V 'POI'tIOIlSf Of said supporting memberfandf swivleled connecting means r se cured to the pumping rod, and means carried by said beam other end. of said bars. for 7 connecting said ibedv comto saidi oscillating beam and said power 7 bars to a reciprocating element whereby to a reciprocate said chain strands cooperatively I with theioscillationzof said beam.

. e.' n devic of thefcharaeterYdescribedeoinprislng an upright supporting member, I an pscillatingbeam fulcrumed on. said support- 7mg member,power means, apitman connected tofsaid oscillating member and-said power means, a rotatableshaft transverselyicarried" 1 by said oscillating memberadj acent the outer,

end portion thereof, a plurality of sprocket' r members carriedbysaidshaft, a pluralityof chain strandsengaging said sprocketfmeans anaemi 9 9 end??? a imp e r a aa ivs?ablereee t e e ns assured pt' 1 other end of said chain strands, said connecting means engaging said chain strands atone end thereof and at the opposite end engaging a reciprocating element whereby to impart reciprocal movement to said chain strands coactively with the movement of said pitman. i

7 A device of the character described comprising an upright supporting member, an oscillating beam fulcrumed on said supporting member, power means for said oscillating member, a pitman connecting said power means and said oscillating member, a rotatable shaft transversely mounted on said oscillating beam adjacent the outer end thereof, rotatable means carried by said shaft, flexible means engaging about said rotatable means and secured at one end to apumping rod, and connecting means adjustably carried by said pitman and engaging the other end of said flexible means whereby t0 adj ustably impart reciprocal movement to said flexible means cooperatively with the swinging movement of said pitman.

8. A device of the character described comprising an upright supporting member, an oscillatin beam fulcrumed on said supporting mem er, power means for said oscillating member, a pitman connected at the upper end thereof to the inner end portion of said oscillating beam and at the lower end to said power means, rotatable means carried by said oscillating member adjacent the outer end portion thereof, flexible means engaging said. rotatable means, a transverse bar connected to one end of said flexible means, said transverse bar engaging a pumping rod, and adjustable means connected to the other end of til) said flexible means, said adjustable connecting means being adapted for reciprocal movement cooperatively with said pitman whereby to impart reciprocal movement to said flexible means, said adjustable means being adapted to be adjustably positioned at the other end on said pitman.

In testimony whereof we hereunto afiix our signatures.

ELIJAH D. SMITH. CHAS. S. McINTYRE. 

